Sdl constructor

Sdl({ String? libName, })

Create an object.

Implementation

Sdl({String? libName})
    : xPointer = calloc<Int>(),
      yPointer = calloc<Int>(),
      x2Pointer = calloc<Int>(),
      y2Pointer = calloc<Int>(),
      floatPointer = calloc<Float>(),
      displayModePointer = calloc<SDL_DisplayMode>(),
      _audioSpecDesiredPointer = calloc<SDL_AudioSpec>(),
      _audioSpecObtainedPointer = calloc<SDL_AudioSpec>(),
      _messageBoxDataPointer = calloc<SDL_MessageBoxData>(),
      _versionPointer = calloc<SDL_version>(),
      hapticDirectionPointer = calloc<SDL_HapticDirection>(),
      rectPointer = calloc<SDL_Rect>(),
      _eventHandle = calloc<SDL_Event>() {
  if (libName == null) {
    if (Platform.isWindows) {
      libName = 'SDL2.dll';
    } else if (Platform.isLinux) {
      libName = 'libSDL2.so';
    } else if (Platform.isMacOS) {
      if (File('libSDL2.dylib').existsSync()) {
        libName = 'libSDL2.dylib';
      } else {
        libName = 'SDL2.framework/SDL2';
      }
    } else {
      throw Exception(
        'Unimplemented operating system: ${Platform.operatingSystem}. '
        'You must specify your own `libName`.',
      );
    }
    final libPath = path.join(
      path.dirname(Platform.script.toFilePath()),
      libName,
    );
    if (File(libPath).existsSync() == true) {
      libName = libPath;
    } else {
      libName = path.join(Directory.current.path, libName);
    }
  }
  sdl = DartSdl(DynamicLibrary.open(libName));
}